I'm not sure why the interrupt is not getting invoked, but I see a
problem with your code.  You are using the InterruptAttach() function,
and providing an ISR routine, but then the rest of the code is written
as though you were using InterruptAttachEvent().  With
InterruptAttachEvent(), you must call InterruptUnmask().  With
InterruptAttach(), do not call InterruptUnmask() unless you are also
calling InterruptMask().  Next, if you continue to use
InterruptAttach(), you cannot use printfs in your ISR.  Please read the
library reference, and look at the "safety" section at the bottom of
each function page.  That lists where it is safe to call each function.

David

> -----Original Message-----
> From: Senthil K [mailto:community-noreply@qnx.com] 
> Sent: April 14, 2010 11:53 AM
> To: ostech-core_os
> Subject: ISR not getting invoked
> 
> Hi,
> 
> I am using the mpc85xx Board and registered the interrupt pin 
> 0x8 along with process.
> 
> MY interrupt handler is not getting invoked.I have pasted my code.
> Please let me know incase of any mistakes..
> 
> 
> /* OS specific Header files */
> #include <stdio.h>
> #include <stdlib.h>
> #include <unistd.h>
> #include <sys/stat.h>
> #include <fcntl.h>
> #include <sys/ioctl.h>
> #include <errno.h>
> #include <sys/socket.h>
> #include <netinet/in.h>
> #include <net/if.h>
> #include <string.h>
> #include <sys/neutrino.h>
> #include <sys/neutrino.h>
> #include <sys/types.h>
> 
> void *int_thread (void *arg);
> const struct sigevent *isr_handler (void *arg, int id);
> 
> struct sigevent event;
> 
> int main ()
> {
>     int irid;
> 
>     
>     // enable I/O privilege
>     if(ThreadCtl (_NTO_TCTL_IO, NULL) == -1)
>     {
>     	printf(" Permission denied\n");
>     	return -1;
>     }
> 
>     event.sigev_notify = SIGEV_INTR;
> 
>     // attach the ISR to IRQ 8
>     irid = InterruptAttach_r(0x8, isr_handler, NULL, 
> 0,_NTO_INTR_FLAGS_TRK_MSK);
> 
> 	if(irid == -1)
> 	{
> 		printf(" Interrupt Attach failed\n");
> 		return -1;
> 	}
> 	while (1)
> 	{
> 
> 		    InterruptUnmask(0x8,irid);
> 		    InterruptWait (0, NULL);
>                      }
> 	InterruptDetach(irid);
>     return 0;
> 
> }
> 
> // this is the ISR
> const struct sigevent *isr_handler (void *arg, int id) {
>     printf(" INTR\n");
>     printf("########## ISR ##################\n");
>     
>     return (&event);
> }
> 
> 
> Please help me on this..
> 
> Regards
> K.Senthil
> 
> 
> 
> 
> _______________________________________________
> 
> OSTech
> http://community.qnx.com/sf/go/post51671
> 
> 

I suspect that the interrupt number you are passing is wrong - the 
interrupt vectors are special constants
which are defined in the init_intrinfo()

On 10-04-14 11:52 AM, Senthil K wrote:
> Hi,
>
> I am using the mpc85xx Board and registered the interrupt pin 0x8 along with process.
>
> MY interrupt handler is not getting invoked.I have pasted my code.
> Please let me know incase of any mistakes..
>
>
> /* OS specific Header files */
> #include<stdio.h>
> #include<stdlib.h>
> #include<unistd.h>
> #include<sys/stat.h>
> #include<fcntl.h>
> #include<sys/ioctl.h>
> #include<errno.h>
> #include<sys/socket.h>
> #include<netinet/in.h>
> #include<net/if.h>
> #include<string.h>
> #include<sys/neutrino.h>
> #include<sys/neutrino.h>
> #include<sys/types.h>
>
> void *int_thread (void *arg);
> const struct sigevent *isr_handler (void *arg, int id);
>
> struct sigevent event;
>
> int main ()
> {
>      int irid;
>
>
>      // enable I/O privilege
>      if(ThreadCtl (_NTO_TCTL_IO, NULL) == -1)
>      {
>      	printf(" Permission denied\n");
>      	return -1;
>      }
>
>      event.sigev_notify = SIGEV_INTR;
>
>      // attach the ISR to IRQ 8
>      irid = InterruptAttach_r(0x8, isr_handler, NULL, 0,_NTO_INTR_FLAGS_TRK_MSK);
>
> 	if(irid == -1)
> 	{
> 		printf(" Interrupt Attach failed\n");
> 		return -1;
> 	}
> 	while (1)
> 	{
>
> 		    InterruptUnmask(0x8,irid);
> 		    InterruptWait (0, NULL);
>                       }
> 	InterruptDetach(irid);
>      return 0;
>
> }
>
> // this is the ISR
> const struct sigevent *isr_handler (void *arg, int id)
> {
>      printf(" INTR\n");
>      printf("########## ISR ##################\n");
>
>      return (&event);
> }
>
>
> Please help me on this..
>
> Regards
> K.Senthil
>
>
>
>
> _______________________________________________
>
> OSTech
> http://community.qnx.com/sf/go/post51671
>
>    

-- 
cburgess@qnx.com